I read some articles about mulitplexing and found out some cool things:
1. two selectable languages work (i tried by multiplexing the .m1v stream and the two .mp2 streams into one mpeg-file with svcd header and burning as svcd) with kvcd
2. it works with all templates i've tried by now (1, 2, 2 plus, x3)
you have to encode the videostream as video-only and your 2 audio-streams as audio-only and then cut them into two if you need two cds (then multiplex). if you want to split the movie into two, you can't take the muxed mpg-file (because it includes only one language) but have to split the m1v and mp2 files into two. the only problem is that tmpegenc seems to "swallow up" one second of movie when saving the second part of the m1v-file with 'mpeg-tools'. if you don't correct this, the second cd will be asyncrone a second
the fact that the mpeg cut/merge tool doesn't copy both audio channels is quite strange, maybe the programmers have forgotten
so, does anybody know a better mpeg-cutting tool which can write svcd-header with 2 audio-tracks? if there is one, then you could simply make your m1v and mp2 files, mux them, cut the mpg file in two and burn the whole thing as 2 svcds. :P :P :P